Improvement in jacks for pressing, stowing



m. 1. WALSH. Jacks for Pressing, Stowing, &c.

No. 169,319, Patented Oct. 26,1875.

Wifieessea MFETERS, FHQTO-LITNOGRAPHER, WASHINGTON, D C.

UNITED STATES PATENT C FIGE.

MAURICE J. WALSH, on NEW YORK N. Y.

IMPROVEMENT IN JACKS FOR PRE SSING, STOWING, &c.

Specification forming part of Letters Patent No. 169,319, dated October26, 1875 application filed October 6, 1875.

To all whom it may concern:

Be, it known that I, MAURICE J. WALSH, of New York, in the county andState of New York, have invented an Improvement in Jacks for Pressing,Stowing, and other purposes; and I do hereby declare that the followingis a full, clear, and exact description of the same.

My invention is particularly applicable to jacks for pressing bales ofcotton when loading or stowing the same in the holds of vessels, or inwarehouses or elsewhere, but is applicable to jacks for other uses. 7

The invention relates to that class of jacks known as rack-jacks; and itconsists in the combination, with such a jack, of an engine mounteddirectly thereon, and geared with its rack-bar.

The jack may have its rack-bar and pinion arranged in the same manner asis usual in rack-jacks of ordinary construction, or in any othersuitable manner. The engine maybe driven by steam, water, or air, andmay be of any suitable construction. It is mounted directly upon thebody of the jack, which thus serves as the supporting frame or standardof the engine. The engine may be connected with the rack-bar or itsoperating pinion by means of gearing arranged in any suitable manner, soas to impart a longitudinal motion to the rack-bar.

.Theaccompanying drawing illustrates one mode of carrying out myinvention.

Figure l is a side view of a rack-jack with an engine applied thereto.Fig. 2 is a longitudinal section taken in the line was of Fig. 1.

The jack is provided with a rack-bar, B, sliding in a frame or casing,A, which constitutes the body of the jack. The rack-bar is driven by apinion, D, attached to a shaft, 0, which has its bearings in the body A,the teeth of the pinion meshing into those of the rack-bar. One end ofthe shaft 0 extends through to the outside of the body A, and carries aworm-wheel, E. The engine is here shown as a rotary engine, H, ofordinary construction. It is mounted directly on the body A, which thusserves as the supporting frame or standard of the engine. To theengineshaft J is attached a worm, G, which engages with the worm-wheelE, and thus. when the engine is in motion, rotates the pinion-shaft anddrives the rack-bar in one direction or the other, according to thedirection in which the en gine-shaft is rotated.

The rotary engine is here shown as being the most convenient form forthe purpose; but instead thereof a reciprocating engine operating with acrank-motion may be used.

The outer end of the rack-bar B may be provided with a claw, b, tofacilitate engagement with the object to be pressed or lifted, or engagement with a fixed obstacle when the end of the body A is made to bearagainst an article to be moved or pressed when the jack is used forstowing and similar purposes. The inner or lower end of the rack-bar maybe provided with foot, b to be used when the distance between the fixedpoint and the object to be moved is too great to admit the entire lengthof the jack. The foot b may work in a slot, at, in the body A, and thusserve to guide the rack-bar.

4 What I claim as new, and desire to secure by Letters Patent, is

1. The combination, with a rackjack, of an engine mounted directlythereon and geared with its rack-bar, substantially as herein described.

2. The combination, with the body A and rack-bar B, of the pinion D,pinion-shaft O, worm'wheel E, and worm Gr, operated by the engine-shaft,substantially as herein described.

' MAURICE J. WALSH.

Witnesses:

MICHAEL RYAN, FRED. HAYNES.

